| Line Item | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net sales | ||||||||||||||||
| YoY growth | -7.8% | -6.7% | -1.3% | -10.3% | ||||||||||||
| Cost of sales | ||||||||||||||||
| Gross profit | ||||||||||||||||
| % of revenue | 68.4% | 68.5% | 64.4% | 64.6% | ||||||||||||
| Operating expenses: | ||||||||||||||||
| Selling and marketing | ||||||||||||||||
| Research and development | ||||||||||||||||
| General and administrative | ||||||||||||||||
| Total operating expenses | ||||||||||||||||
| % of revenue | 63.5% | 71.2% | 64.2% | 73.4% | ||||||||||||
| Income (loss) from operations | ||||||||||||||||
| % of revenue | 5.0% | -2.8% | 0.2% | -8.8% | ||||||||||||
| Interest expense | ||||||||||||||||
| Interest income | ||||||||||||||||
| Other income, net | ||||||||||||||||
| Change in fair value of warrant liabilities | ||||||||||||||||
| Foreign currency transaction loss (gain), net | ||||||||||||||||
| (Loss) income before provision for income taxes | ||||||||||||||||
| Income tax expense (benefit) | ||||||||||||||||
| Net (loss) income | ||||||||||||||||
| % of revenue | -3.7% | -10.2% | -9.8% | -15.6% | ||||||||||||
| Comprehensive (loss) income, net of tax: | ||||||||||||||||
| Foreign currency translation adjustments | ||||||||||||||||
| Comprehensive (loss) income | ||||||||||||||||
| Net (loss) income per share | ||||||||||||||||
| Basic (in dollars per share) | ||||||||||||||||
| Diluted (in dollars per share) | — |